I think Scheveningen and Groningen are both relatively easy, provided you remember that both ch and g are pronounced as a guttural, as in buch.

Garry Kasparov presented some problems. He made the conscious decision to become Garry rather than Harry. We just don't have a way of representing that sound in the 26 letters of the alphabet. Players often speaking of coming to Gastings.

My own Hebrew name has that problem. Solmen Ben Yitschok.

Not forgetting Harry Weinstein. Never had a problem with your name Stewart. Usually asked for a Reuben, at the sandwich shop in Baker Street.

Gordon >Usually asked for a Reuben, at the sandwich shop in Baker Street.<

A Reuben sandwich is, of course, Pastrami on Rye, presumably named after the New York Delicatessen, rather than me.
If you google Stewart Reuben, you may get a photo of a Reuben sandwich. That is because there is a famous cook called Mary Stewart. Thus Mary Stewart Reuben Sandwich Recipe.

Following the World Cup in Russia, FIFA will introduce a ranking system based on the Elo System. As today's Daily Telegraph says, that was originally developed for chess. The system used this year to decide the seedings for the World cup seems nonsensical.
I read recently that Elo is being used for Tennis. I don't know the details, e.g. how do they cope with different surfaces? Possibly as we do with three rating systems for standard, rapid and blitz.
I was hired by, I think, the Sunday Express to prepare an Elo rating system for snooker. It worked well enough with a k factor of 1, but wasn't taken up by the existing bodies. I used it subsequently to bet on the outcome of snooker matches, particularly frame scores. I could break even, but the betting tax of the time was prohibitive, so I gave it up. That was the year Steve Davis lost in the final to Dennis Taylor. Jon Ady did the computerisation and David Levy helped me with the binomial theorem working out the expected scores.

The usual error in setting up a chess board - and a less common one (look carefully). From an ad in NZ's Sunday Star-Times magazine.

Chess Set Ad (2).jpg (99.79 KiB) Viewed 737 times

"The chess-board is the world ..... the player on the other side is hidden from us ..... he never overlooks a mistake, or makes the smallest allowance for ignorance."
(He doesn't let you resign and start again, either.)

There was once an ad in The Times, 'Your best move is' by a firm of accountants (?). There was a standard chess board and set, with two white kings on the board.
I suggested to Ray Keene that he contact the company. 'Why bother?' 'Well, it can't do any harm.' The director said to Ray, 'Come and have lunch'. Music in Ray's ears of course.
It resulted in 3-4 GM tournaments, one of the matches in the Candidates and an international in New York.
Murray Chandler may be the best person to contact in NZ.